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1940 Map of Mt Cowen, 1963 Print
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1940 Map of Mt Cowen

USGS Topo · Published 1963

About this map

Gallatin National Forest dominates this topographic study, revealing the complex drainage basins of the Boulder River and its forks during the late 1930s. Surveyed by J. L. Lewis, F. H. Purdy, and J. M. Holmes, the terrain is defined by high-altitude features like McKnight Peak, Black Mtn, and The Needles. The map traces numerous water bodies including Jewel Lake, West Boulder Lake, and Bridge Lake, alongside smaller alpine features like Three Alpine Lake Creeks. A network of early trails provides the only human transit through the region, connecting remote points such as Mill Creek Pass and the high-elevation End Lookout. The detail identifies specific meadows and canyons, including Beaver Meadows and the curiously named Frog-to-Death Creek, offering a clear view of the wilderness geography before mid-century changes.

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Map Details

Date Portrayed1940
Date Published1963
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions18 x 21.7 inches

Editions of this 1940 Mt Cowen Map

Historical Maps of Park County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain